Update quick_start_guide.md

[AndrewMbugua]

Changing from $make run to $bazel build after encountering this issue As part of the Make to Bazel switch-over of the AGW this Makefile will be deprecated soon" message.

Summary

On running $ make run I got the message: MAIN_FEATURE agw_of OAI_FLAGS -DS6A_OVER_GRPC=True -DEMBEDDED_SGW=True Warning: As part of the Make to Bazel switch-over of the AGW this Makefile will be deprecated soon, see https://github.com/magma/magma/issues/14971. Do not add any new Make targets for the AGW! All new targets should be integrated with the Bazel build system, see https://magma.github.io/magma/docs/next/bazel/agw_with_bazel.

and a subsequent build failure.

Test Plan

I initially encountered permission issues so I first did the following(Not recommended for everyone):
$ sudo mkdir -p /var/cache/bazel-cache
$ sudo chown -R vagrant:vagrant /var/cache/bazel-cache

Also do the same for the repository cache:

$ sudo mkdir -p /var/cache/bazel-cache-repo
$ sudo chown -R vagrant:vagrant /var/cache/bazel-cache-repo
$ cd /home/vagrant/magma/lte/gateway
$ bazel build

Result INFO: Build completed successfully, 1 total action

Additional Information

• This change is backwards-breaking

Security Considerations

[lucaaamaral]

Have you explored the lte/gateway/deploy/agw_install_docker.sh? How would you feel in documenting this path instead? Also, you have changed a versioned doc, which needs to be kept static.

If I may recommend: do create a file in readmes/deploy/agw_docker.md for documenting the AGW installation on docker.
This integrates well with the current plan (#32) of reorganizing the documentation structure.